Ergonomic seat



FIG. 1 is a front, left side perspective view of an ergonomic seat showing my new design;

FIG. 2 is a side view thereof, the opposite side view thereof being a mirror image;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a top view thereof; and,

FIG. 6 is a bottom view thereof.

The broken lines in the drawing illustrate environmental material that forms no part of the claim design. 

The ornamental design for an ergonomic seat, as shown and described. 